Why Long-Short is the New Long g P

Why Long-Short is the
New Long
g
Presentation
P
t ti to
t PortfolioConstruction
P tf li C
t ti
Conference 2008
Vasant Khilnani – Senior Portfolio Manager
g
Paul Sewell – General Manager – Equity Sales
August 2008
Is this a Normal Market?
16000
Dow Jones Industrial Average
14000
12000
10000
8000
6000
4000
2000
0
Source: IRESS
1
Or is this a Normal Market?
1200
Dow Jones Industrial Average
1000
800
600
400
200
0
Source: IRESS
2
Implications for Investors
ƒ Need to run p
portfolio more efficiently
y
3
–
Extract high return for same risk
–
Lower risk for same returns
Clarke, Silva & Thorley
O t b 2002
October
Alpha
p = TE * IC * TC * N^.5
Where
Alpha = Excess Return Desired by the investor
TE = Tracking error or risk in the portfolio
IC = Managers skill. It is his/her ability to forecast returns for individual
stocks
TC = Transfer coefficient of the portfolio
N = Market breadth or number of independent bets in the portfolio
4
Ingredients for Alpha
Alpha = TE * IC * TC * N
N^.5
.5
ƒ An increase in the left hand side of the equation (Alpha)
(Alpha),
can be achieved by increasing any of the terms on the right hand side.
ƒ In
I absence
b
off any portfolio
tf li constraints,
t i t TC = 100
5
How inefficient is the long only constraint?
Clarke, De Silva, Sapra - 2004
Constraints Removed
All
Constraints
Transfer Coefficient (TC)
% Change in TC
6
0.332
Position
Market
Long
Limit
Cap
Only
0.346
0.298
0.471
0.678
8%
-7%
46%
108%
Industry
Sector
0.347
8%
Australian Context
Up Month
September
2007
Down Month
January
2008
7
Portfolio
Tracking Error
Efficiency (TC)
% Change in efficiency (TC)
Long Only
3
75.64%
5% Short
3
83.42%
10.29%
10% Short
3
86 46%
86.46%
14 30%
14.30%
15% Short
3
88.38%
16.84%
20% Short
3
90.36%
19.46%
P tf li
Portfolio
T
Tracking
ki Error
E
Effi i
Efficiency
(TC)
% Ch
Change iin efficiency
ffi i
(TC)
Long Only
3
81.23%
5% Short
3
92.48%
13.85%
10% Short
3
94.83%
16.74%
15% Short
3
96.09%
18.29%
20% Short
3
97.08%
19.51%
ƒ
Tracking error 3% was chosen as it is typical of an active manager in Australia
ƒ
Max number of stocks 100
ƒ
Position limits: starting at ±5% for the rank 1 stock and then linearly reducing to ±0.5%
±0 5%
ƒ
Universe: ASX 300
ƒ
Transaction costs were ignored
What is Implied Alpha?
ƒ Not explicitly
p
y supplied
pp
by
y the p
portfolio manager
g
ƒ Implied by the manager’s
manager s portfolio
8
An Implementation Case Study
ƒ Can an existing
g Long-only
g
y process
p
benefit from Long-Short
g
strategy?
gy
– Super imposed short positions – Long Investment process untouched
– Implied alphas used
– Done 6 years ago
9
Back Test Methodology
ƒ Long positions same as ASF
ƒ Monthly Rebalance
ƒ Use of Implied Alphas for short positions
Æ
10
Share Plus = 120% ASF + 20% Short Positions
Back testing of Long only Vs Long-Short Portfolio
August 1997 - August 2002
Long Only
Long Short
Benchmark return p.a.
7.41%
7.41%
Portfolio Return p.a.
12.05%
17.55%
Active Return p.a.
4.64%
10.14%
Active Risk (TE)
4.29%
6.17%
1.08
1.64
51.90%
12.13%
12.26%
1.07%
Information Ratio (IR)
Absolute Risk (Risk of losing money or beta risk)
11
Change
Some implementation considerations for Short Selling
strategies
t t i
ƒ Risks
– Risks in the short position are skewed
ƒ Stock Availability for short selling
– In Australia, most if not all short positions are implemented by borrowing stock from
a prime broker
ƒ Franking
F
ki
credits
dit
– Domestic Vs Overseas Lenders
12
Conclusion
ƒ Not running a portfolio at its maximum possible efficiency is like driving
a six speed car in second gear.
ƒ The short positions are inherently more risky than long positions but
the risk can be managed.
ƒ Even a modest amount of short selling
g can have dramatic impact
p
on
the portfolio efficiency.
13
Questions and Answers
14
The Plus in SHARE-PLUS
(ASF
20%)
ASF (+20%)
ASFASF
100%
100%
Non ASF
N
-(20%)(-
15
SHARE-PLUS Performance
J
June
2003 tto JJune 2008
16
ASF
Share-Plus
Benchmark
Excess
12 Months to June ‘04
04
24 77%
24.77%
25 79%
25.79%
21 75%
21.75%
+4 04%
+4.04%
12 Months to June ‘05
27.63%
25.20%
26.04%
-0.84%
12 Months to June ‘06
25.77%
24.91%
24.01%
+0.90%
12 Months to June ‘07
24.28%
22.68%
29.20%
-6.52%
12 Months to June ‘08
-9.62%
-4.89%
-13.67%
+8.78%
Key messages
ƒ Not hedge fund – core equity product
ƒ Leverages off our stock picking skills
ƒ Risks similar to traditional equity products
17
Disclaimer
IMPORTANT NOTE: This presentation has been prepared by Perpetual Investment Management Limited ABN 18 000 866 535
535, an Australian
Financial Services Licensee, Licence Number 234426, a subsidiary of Perpetual Trustees Australia Limited. While Perpetual strives to provide
accurate information, this presentation should not be treated as a comprehensive statement of any law or practice. This presentation is not
intended to provide you with personal advice and in providing this information, we have not taken into account your particular investment
objectives, financial situation or needs. You should assess whether this information is appropriate for your particular needs, either by yourself or
with your adviser. Perpetual expressly disclaims any responsibility or liability to anyone who acts or relies upon anything contained in, or omitted
f
from,
this
thi presentation.
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Total
t l returns
t
shown
h
iin th
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t ti / lid h
have b
been calculated
l l t d using
i exit
it prices
i
after
ft ttaking
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t accountt allll off
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18
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